closed-circuit television

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closed-circuit television

a television system in which signals are transmitted from a television camera to the receivers by cables or telephone links forming a closed circuit, as used in security systems, etc.

closed-circuit television

[¦klōzd ¦sər·kət ′tel·ə‚vizh·ən]
(communications)
Any application of television that does not involve broadcasting for public viewing; the programs can be seen only on specified receivers connected to the television camera by circuits, which include microwave relays and coaxial cables. Abbreviated CCTV.
References in periodicals archive ?
Spying equipment such as closed-circuit security cameras, audio recorders and GPS devices is increasingly being used to monitor and track employees' activities.
Following debate on the use of closed-circuit security cameras in Iran, Majlis Deputy Kazem Jalali warned that the program may violate privacy rights and said any use of security cameras must be within existing privacy guidelines.
Police released footage from a closed-circuit security camera of a couple pictured entering the car park and were seeking them for questioning.
The space boasts many closed-circuit security cameras positioned along several hallways and above the stairs.
Despite closed-circuit security cameras and a resident drugs unit, scores of addicts make their way to Kerr's fourth-floor flat in Glasgow's Dundasvale Court, in Cowcaddens.
It has 174 closed-circuit security cameras - more than Coventry city centre itself - which are recorded and monitored 24 hours a day.
A closed-circuit security video later showed Copland approaching James and giving him a drink from a bottle of Buckfast.
COVENTRY'S SkyDome will have more closed-circuit security cameras than all the city centre.
A closed-circuit security camera captured the incident where Henderson and his pal Alistair Doyle punched Hamilton as he lay defenceless on his back.
Crime levels have plummeted since four closed-circuit security cameras were installed last May.